Injection molding part trimming structure

Abstract

The plastic injection part trimming structure comprises a plurality of pneumatic scissors arranged corresponding to sprues in plastic injection parts, a supporting table used for containing the plastic injection parts is arranged between the pneumatic scissors, and a pushing assembly and a conveying assembly are arranged on the opposite sides of the supporting table respectively. And the pushing assembly is used for pushing the cut injection molding part to the conveying assembly. By means of the gate shearing device, one-step posture shearing can be achieved, a mechanical arm does not need to be used for repeatedly adjusting the posture, in this way, the shearing efficiency can be improved, meanwhile, stroke errors caused by posture adjusting can be reduced, and the shearing quality of each gate is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of injection molding processing, in particular to an injection molding trimming structure. Background Art

[0002] Injection molded parts refer to various plastic products made through the injection molding process. After injection molding, a gate will be left on the surface of the injection molded parts. In order to make the products meet the design requirements of appearance and functional standards, the gate needs to be removed after the product is demoulded.

[0003] At present, the general method of removing the gate is to cut manually or by machine. Machine cutting is to remove the product from the mold by a robotic arm, adjust the product to a certain posture, and then align the root of the gate with the pneumatic scissors outside the equipment to cut off the gate. After the gate is removed, the product is transferred to the product storage area by the robotic arm. Since the pneumatic scissors are usually set to a single one, if the injection molded part has multiple gates, the robotic arm needs to adjust the posture multiple times and cut the multiple gates in turn. In this process, since the robotic arm needs to adjust the product posture multiple times, the motion trajectory setting requirements of the robotic arm are relatively high, and the adjustment process is relatively time-consuming, which will affect production efficiency. In addition, after the gate on the product is removed, it needs to be grabbed again by the robotic arm before it can be transferred to the product storage area. The work efficiency is low and it is not conducive to mass production. Utility Model Content

[0004] In order to overcome the deficiencies of the prior art, the utility model aims to provide an injection molded part trimming structure to solve the problem of low efficiency of gate trimming of injection molded parts.

[0005] The technical solution adopted by the utility model is as follows:

[0006] A structure for trimming injection molded parts comprises a plurality of pneumatic scissors arranged corresponding to a plurality of gates on the injection molded parts, a support platform for placing the injection molded parts is arranged between the plurality of pneumatic scissors, a push assembly and a conveying assembly are arranged on opposite sides of the support platform, and the push assembly is used to push the injection molded parts after shearing onto the conveying assembly.

[0007] Compared with the prior art, the principles and beneficial effects of the utility model are as follows:

[0008] 1. When using this solution, after the injection molded part is taken out of the mold by the robotic arm, it is adjusted to a certain posture and then placed on the support table. The gates of the injection molded part are aligned with the corresponding pneumatic scissors respectively, and the shearing posture is in place in one step. There is no need to use the robotic arm to adjust the posture multiple times. This setting can not only improve the shearing efficiency, but also reduce the stroke error caused by adjusting the posture, and ensure the shearing quality of each gate;

[0009] 2. After the shearing is completed, the injection molded parts are pushed onto the conveying component by the pushing component, and then the injection molded parts are conveyed to the product storage area along with the conveying component. Through this setting, the injection molded parts can be quickly conveyed to the storage area without the need to use a robotic arm for transfer. After the robotic arm places the injection molded part on the support table, it can grab the next injection molded part, which can improve processing efficiency and facilitate batch processing.

[0010] As a preferred embodiment of the utility model, the support platform includes a support plate and a negative pressure box fixed to the lower side of the support plate, the upper side of the negative pressure box is open, and a plurality of negative pressure holes are opened on the support plate, and the negative pressure holes are used to absorb the injection molded parts when shearing the gate. In this solution, the negative pressure holes are connected to the negative pressure box, and when shearing the gate, the injection molded parts can be absorbed by negative pressure, so that the injection molded parts remain stable and the shearing effect is guaranteed.

[0011] As a preferred embodiment of the utility model, the shearing ends of the plurality of pneumatic scissors are respectively close to the roots of the corresponding gates. This arrangement can improve the shearing flatness of the gate and improve the shearing quality.

[0012] As a preferred embodiment of the utility model, the push assembly includes a horizontally arranged cylinder, the free end of the piston rod of the cylinder is fixed with a push plate, and the lower end surface of the push plate is flush with the upper end surface of the support plate. In this solution, the lower end surface of the push plate is flush with the upper end surface of the support plate, which can ensure that the push plate can smoothly push the injection molded part on the support plate to the conveying assembly.

[0013] As a preferred embodiment of the utility model, the conveying assembly includes a conveyor belt, and the upper end surface of the conveyor belt is flush with the upper end surface of the support plate. In this solution, the upper end surface of the conveyor belt is flush with the upper end surface of the support plate, which can ensure that the injection molded parts can be smoothly transferred to the conveyor belt, and then the injection molded parts are synchronously conveyed with the conveyor belt.

[0014] As a preferred embodiment of the present invention, a vacuum machine is arranged in the negative pressure box. In this solution, the vacuum machine provides a negative pressure environment for the negative pressure box. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the structure of an embodiment of the utility model;

[0016] Figure 2 This is a schematic diagram of the structure when the gate is cut in the embodiment of the utility model;

[0017] Figure 3 This is a schematic diagram of the structure after cutting is completed in the embodiment of the utility model;

[0018] Figure 4 It is a side view of an embodiment of the utility model.

[0019] Reference numerals include:

[0020] Frame 1, pneumatic scissors 2, shearing end 21, support platform 3, negative pressure hole 31, cylinder 4, piston rod 41, push plate 42, conveyor belt 5, injection molded part 6, gate 61. DETAILED DESCRIPTION

[0021] Typical embodiments that embody the features and advantages of the present invention will be described in detail in the following description. It should be understood that the present invention can have various changes in different embodiments without departing from the scope of the present invention, and the descriptions and illustrations therein are essentially for illustrative purposes rather than for limiting the present invention.

[0022] In the description of the present application, the terms "top", "bottom", "one end", "one side", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the structure referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they should not be understood as limitations on the present application.

[0023] See also Figure 1-4 As shown, this embodiment discloses an injection molding trimming structure, including a plurality of pneumatic scissors 2 arranged corresponding to a plurality of gates 61 on the injection molding part 6. This embodiment is described by taking one pneumatic scissors 2 as an example. The pneumatic scissors 2 are vertically fixed on the frame 1. After the injection molding of the product is completed, it is taken out of the mold by a mechanical arm, adjusted to a certain posture, and then placed on the support table 3. The gates 61 of the injection molding part 6 are respectively aligned on the pneumatic scissors 2, so that the shearing end 21 of the pneumatic scissors 2 is close to the root of the gate 61 for shearing, thereby ensuring the shearing flatness of the gate 61. By arranging the pneumatic scissors 2 corresponding to the gate 61, this solution can, on the one hand, achieve the shearing posture in one step, without using the mechanical arm to adjust the posture multiple times, thereby improving the shearing efficiency. On the other hand, it can also reduce the stroke error caused by adjusting the posture, thereby ensuring the shearing quality of each gate 61.

[0024] A support platform 3 for placing the injection molded part 6 is arranged between several pneumatic scissors 2. The support platform 3 is fixed on the frame 1. The support platform 3 includes a support plate and a negative pressure box fixed on the lower side of the support plate. A vacuum machine is fixed in the negative pressure box. The upper side of the negative pressure box is open. Several negative pressure holes 31 are evenly opened on the support plate. The negative pressure holes 31 connect the negative pressure box and the outside world. When the injection molded part 6 is placed on the support plate, the vacuum machine is started, and the injection molded part 6 is fixed on the support plate by negative pressure adsorption. Through this arrangement, the injection molded part 6 can be kept stable when the gate 61 is sheared to ensure the shearing effect.

[0025] The opposite sides of the support table 3 are respectively provided with a push assembly and a conveying assembly, both of which are fixed to the frame 1. The push assembly includes a laterally fixed cylinder 4, and a push plate 42 is fixed to the free end of the piston rod 41 of the cylinder 4. The conveying assembly includes a conveyor belt 5, and the upper end surface of the conveyor belt 5 and the lower end surface of the push plate 42 are flush with the upper end surface of the support plate. After the injection molded part 6 is sheared, the vacuum machine is stopped, and the cylinder 4 is started at the same time, so that the push plate 42 is attached to the upper end surface of the support plate to push the injection molded part 6. After the injection molded part 6 is pushed onto the conveyor belt 5, it can be conveyed to the product storage place along the conveyor belt 5. Through this setting, the injection molded part 6 can be quickly conveyed to the storage place. This process does not require the use of a mechanical arm for transportation. After the injection molded part 6 is placed on the support table 3, the mechanical arm can grab the next injection molded part 6, which can improve the processing efficiency and facilitate batch processing.

[0026] The above-mentioned implementation modes are only preferred implementation modes of the present invention, and cannot be used to limit the protection scope of the present invention. Any non-substantial changes and substitutions made by technicians in this field on the basis of the present invention shall fall within the scope of protection required by the present invention.

Claims

1. An injection molded part trimming structure, characterized in that: It comprises a plurality of pneumatic scissors arranged corresponding to a plurality of gates on an injection-molded part, a support platform for placing the injection-molded part is arranged between the plurality of pneumatic scissors, a pushing assembly and a conveying assembly are arranged on opposite sides of the support platform, and the pushing assembly is used to push the injection-molded part after shearing onto the conveying assembly.

2. The injection molded part trimming structure according to claim 1, characterized in that: The support platform includes a support plate and a negative pressure box fixed on the lower side of the support plate. The upper side of the negative pressure box is open, and a plurality of negative pressure holes are opened on the support plate. The negative pressure holes are used to adsorb the injection molded parts when shearing the gate.

3. The injection molded part trimming structure according to claim 1, characterized in that: The shearing ends of the pneumatic scissors are respectively close to the roots of the corresponding gates.

4. The injection molded part trimming structure according to claim 2, characterized in that: The push assembly comprises a transversely arranged cylinder, a push plate is fixed to the free end of the piston rod of the cylinder, and the lower end surface of the push plate is flush with the upper end surface of the support plate.

5. The injection molded part trimming structure according to claim 2, characterized in that: The conveying assembly comprises a conveying belt, and the upper end surface of the conveying belt is flush with the upper end surface of the supporting plate.

6. The injection molded part trimming structure according to claim 2, characterized in that: A vacuum machine is arranged in the negative pressure box.

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